within problem d the first choice is either greater or less and the other two empty spaces are increasing and decrease as both choices
within problem d the first choice is either greater or less and the other two empty...
According to a social media blog, time spent on a certain social networking website has a mean of 19 minutes per visit. Assume that time spent on the social networking site per visit is normally distributed and that the standard deviation is 7 minutes. Complete parts (a) through (d) below a. If you select a random sample of 36 sessions, what is the probability that the sample mean is between 18.5 and 19.5 minutes? (Round to three decimal places as...
According to a social media blog, time spent on a certain social networking website has a mean of 20 minutes per visit. Assume that time spent on the social networking site per visit is normally distributed and that the standard deviation is 7 minutes. Complete parts (a) through (d) below. a. If you select a random sample of 25 sessions, what is the probability that the sample mean is between 19.5 and 20.5 minutes? (Round to three decimal places as...
Time spent using e-mail per session is normally distributed, with mu equals μ=9 minutes and sigma equals σ=2 minutes. Assume that the time spent per session is normally distributed. Complete parts (a) through (d). a. If you select a random sample of 25 sessions, what is the probability that the sample mean is between 8.8 and 9.2 minutes? (Round to three decimal places as needed.) b. If you select a random sample of 25 sessions, what is the probability that...
According to a social media blog, time spent on a certain social networking website has a mean of 24 minutes per visit. Assume that time spent on the social networking site per visit is normally distributed and that the standard deviation is 7 minutes. If you select a random sample of 36 sessions, what is the probability that the sample mean is between 23.5 and 24.5 minutes?
According to a social media blog, time spent on a certain social networking website has a mean of 16 minutes per visit. Assume that time spent on the social networking site per visit is normally distributed and that the standard deviation is 5 minutes. If you select a random sample of 144 sessions, what is the probability that the sample mean is between 15.5 and 16.5 minutes?
According to a social media blog, time spent on a certain social networking website has a mean of 22 minutes per visit. Assume that time spent on the social networking site per visit is normally distributed and that the standard deviation is 55 minutes. Complete parts (a) through (d) below. a. If you select a random sample of 16 sessions, what is the probability that the sample mean is between 21.5 and 22.5 minutes?
Suppose a geyser has 23 minutes. Complete parts (a) through (e) below. mean time between eruptions of 80 minutes. Let the interval of time between the eruptions be normally distributed with standard deviation (a) What is the probability that a randomly selected time interval between eruptions is longer than 91 minutes? The probability that a randomly selected time interval is longer than 91 minutes is approximately (Round to four decimal places as needed.) (b) What is the probability that a...
Scenario 7.5 Time spent using e-mail per session is normally distributed with H 8 minutes and o 2 minutes. If a random sample of 25 sessions is selected, answer the questions below. Question 16 1 pts Based on the information in Scenario 7.5, what is the probability that the sample mean is between 7.8 and 8.2 minutes? (4 decimals) Question 17 1 pts Based on the information in Scenario 7.5, what is the probability that the sample mean is between...
op Suppose a geyser has a mean time between eruptions of 61 minutes. Let the interval of time between the eruptions be normaly distributed with standard deviation 24 minutes. Complete parts (a) through le) below (a) What is the probability that a randomly selected time interval between eruptions is longer than 71 minutes? The probability that a randomly selected time interval is longer than 71 minutes is approximately (Round to four decimal places as needed (b) What is the probability...
Suppose a geyser has a mean time between eruptions of 95 minutes. If the interval of time between the eruptions is normally distributed with standard deviation 27 minutes, answer the following questions a) What is the probability that a randomly selected time interval between eruption is longer than 10 minutes? The probability that a randomly selected time interval is longer than 106 minutes is approximately Round to four decimal places as needed) (b) What is the probability that a random...